Iron-aluminum composite suction plug of permanent magnet motor and manufacturing method thereof

Abstract

The invention relates to an engine piston, in particular to an iron and aluminum compounded sucked plug of a permanent magnet engine and a manufacturing method of the iron and aluminum compounded sucked plug. The iron and aluminum compounded sucked plug is characterized in that the iron and aluminum compounded sucked plug is composed of an iron sheet and an aluminum-based plug body; the aluminum-based plug body and the iron sheet are poured together through an aluminum pouring process, convex nails, convex nail conical heads and iron sheet edge hooks are designed in the direction, facing the aluminum-based plug body, of the iron sheet to firmly fix the aluminum-based plug body and the iron sheet, and therefore it is guaranteed that the iron sheet and the aluminum-based plug body are not prone to disengagement in the vertical motion and thermal expansion and cold shrinkage processes. A plug skirt is formed in the direction, opposite to the iron sheet, of a top plate of the aluminum-based plug body, a 90-degree angle is formed between the top plate and the plug skirt, coaxial oppositely-penetrating plug pin holes are formed in the symmetry center line of the plug skirt, the plug pin holes stretch out in the direction, facing the interior of the aluminum-based plug body, of each plug pin hole to form a circle of hole posts, and the iron and aluminum compounded sucked plug is hinged to a crankshaft connecting rod system in the mode that plug pins penetrate through the plug pin holes. Compared with a piston of an existing permanent magnet engine, the iron and aluminum compounded sucked plug has the advantages of being reasonable in structure, ingenious in design, small in density and motion inertia and free of permanent magnets, and provides a new technical direction for sucked plugs suitable for the permanent magnet engine.

Description

technical field [0001] The invention belongs to the field of engine pistons, in particular to an iron-aluminum composite suction plug of a permanent magnet engine and a manufacturing method thereof. Background technique [0002] The existing permanent magnet motor usually adopts the piston made of permanent magnet, which has high density and large inertia, so that the permanent magnetic energy consumed by the piston in the process of moving up and down is also large. The generated inertial force is also large, so that the geometric dimensions of the corresponding crankshaft connecting rod mechanism are large, and the mechanical performance requirements of the crankshaft connecting rod mechanism are also high, thereby greatly increasing the manufacturing cost and reducing the service life and reliability. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and to design an iron-aluminum composite suction ...

AI Technical Summary

Problems solved by technology

[0002] The existing permanent magnet motor usually adopts the piston made of permanent magnet, which has high density and large inertia, so that the permanent magnetic energy consumed by the piston in the process of moving up and down is also large. The generated inertial force is also large, so that the geometric size of the corresponding crankshaft connecting rod mechanism is large, and the mechanical performance requirements of the crankshaft connecting rod mechanism are also high, thereby greatly increasing the manufacturing cost, reducing the service life and reliability

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